Why is it when someone filled out my form the email my notification to me goes into my junk mail?

Please refer to our user guide: How-to-prevent-emails-landing-in-spam-folder-in-your-Gmail-account

It should be applicable as well even for non gmail email service.

To make sure also that your email service will not block the submission email, you can also setup the Notification email to use your own SMTP email. 

User guide: https://www.jotform.com/help/244-How-to-Setup-SMTP-for-a-Form

Hope this help. Let us know if issue persist.

Thanks.